LT1054CJ8

Voltage Regulators - DC DC Switching Regulators Overview

The LT1054CJ8 is a monolithic, bipolar switched-capacitor voltage converter and regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5V to 15V and provides a typical output current of 100mA. The device features an adaptive switch driver scheme that optimizes efficiency across wide output current ranges, resulting in a total voltage loss of typically 1.1V at 100mA output. It includes an internal oscillator running at a nominal frequency of 25kHz, which supports external synchronization. The component offers regulation capabilities via an external resistive divider and allows for shutdown functionality with supply current less than 100µA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a reference and error amplifier to provide stable voltage regulation against input and load variations.
• Utilizes an adaptive switch driver scheme to maintain high efficiency over a broad spectrum of output currents.
• Supports external oscillator synchronization and adjustable switching frequencies through the dedicated oscillator pin.

Voltage Regulators - DC DC Switching Regulators Applications

• Negative voltage doubler circuits
• Basic voltage inverter configurations
• Regulated DC-to-DC conversion from 3.5V to 15V inputs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'CJ8' against official Analog Devices documentation to confirm package type and temperature grade, as standard listings often feature CN8 or CS8 variants. Ensure compatibility with existing PCB footprints if replacing older LTC1044 or ICL7660 designs. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Validate that the selected variant meets the required operating temperature range for the intended application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a switched-capacitor solution with integrated regulation is required for low-power applications. It serves as a direct pin-compatible replacement for legacy converters like the LTC1044 and ICL7660. Consider the 100mA output capability and 1.1V voltage drop when designing power budgets. The ability to synchronize the internal 25kHz oscillator makes it suitable for systems requiring precise timing control or noise management relative to other clocked components.

Voltage Regulators - DC DC Switching Regulators Part Context

The LT1054 series represents a class of monolithic bipolar switched-capacitor voltage converters and regulators. These devices are designed to offer higher output currents and lower voltage losses compared to earlier generations. The family includes various packages such as SO-8 and DIP-8, catering to different manufacturing needs. The LT1054 distinguishes itself by incorporating regulation features previously unavailable in similar charge pump technologies, allowing for precise output voltage control without additional complex circuitry.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LT1054 is pin-compatible with the LTC1044 and ICL7660. When substituting these parts, verify that the new design accommodates the specific electrical characteristics of the LT1054, particularly regarding quiescent current and switching frequency behavior.